91368372 has 48 divisors (see below), whose sum is σ = 216760320. Its totient is φ = 29951712.

The previous prime is 91368349. The next prime is 91368391. The reversal of 91368372 is 27386319.

It is a self number, because there is not a number n which added to its sum of digits gives 91368372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254329 + ... + 254687.

It is an arithmetic number, because the mean of its divisors is an integer number (4515840).

Almost surely, 2^91368372 is an apocalyptic number.

It is an amenable number.

91368372 is an abundant number, since it is smaller than the sum of its proper divisors (125391948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91368372 is a wasteful number, since it uses less digits than its factorization.

91368372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 658 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 91368372 is about 9558.6804528659. The cubic root of 91368372 is about 450.4002562289.

The spelling of 91368372 in words is "ninety-one million, three hundred sixty-eight thousand, three hundred seventy-two".